From patchwork Sat Jun 1 15:04:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil V L X-Patchwork-Id: 13682463 Received: from mail-il1-f178.google.com (mail-il1-f178.google.com [209.85.166.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B8E37152E0A for ; Sat, 1 Jun 2024 15:05:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717254306; cv=none; b=b2AWUrvz7QS/Nt0lncS3UfkgeT1hvcW8XtkqwiXFdpMxFa11f7YbdvODFBmPBdKzoCWgYHIDuRPF3g4OKCDrMYswRdN1jbHOYWK0xZoSucO9Ew+WOh1EBbM0FMtvM8cAT/E5ceykZNOPZ2Y9bd9uzRZRXbh8nYyigClYQfdvpqU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717254306; c=relaxed/simple; bh=gUZ5nlwTeV/W2GAxqRBkwnxWUnWQmkvoylnNCHneLXI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=DGS6A9BVBBD+D1msMSFhXeQ43UjUA9kDxt0P6rva7r6vADIey/MgVnjhuM7juU5VghRZxY3bn3sIZ/n/Dzf73j78z6R5Lu3F9xubeCz3Yp4jqkfgwicpnYRlqWtToqKaWjWPtZPRmgNtEBb1o9h8lojGTdTMGfYAZHylYHvY5Bg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com; spf=pass smtp.mailfrom=ventanamicro.com; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b=IZuwQd/J; arc=none smtp.client-ip=209.85.166.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="IZuwQd/J" Received: by mail-il1-f178.google.com with SMTP id e9e14a558f8ab-3748d68b713so5531675ab.1 for ; Sat, 01 Jun 2024 08:05:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1717254304; x=1717859104; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Z/CsLBy86VnyNo2isQPCT1WZPGBpvem+xh2ISHmLXVs=; b=IZuwQd/Jc+GX1RaooXAgCSZ9pqgw4oZRgMY7PlmedJT+SD8NwxL7xPHt6OK0tpAAW3 rDexKMV0YFVSma+weZAs8Q7TtIb1c3g3JFHjTZr6Gaz48ZrNq/6FQ8onugsLGv+04EcI KdK4Eg4gan9h9VIXW/ZIIskIN3Os6NfDCQ1nrssG0UUi+cqNUa/BQgeKveir1kJy4Rsd aGbVfGJglSfBxfSHCbu3BCV8F8nOIuo1mbPRBtSyavX3Dx0J7dj7CL4G/w+XsPYwkvwj rKTCyAn0TdPCLwIhArVi15PjrFK7q5Zykhr4ps1/xTexc8IINOA7tUIMdUziqNBAfsr6 VRmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717254304; x=1717859104; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Z/CsLBy86VnyNo2isQPCT1WZPGBpvem+xh2ISHmLXVs=; b=uIY9Ekno083QaIifAsgzjmozFPXcsUdNWkPe2E5rMgddmWqk/yCH3lYV2MbuHbl082 rLjFwP8PyQlY/zIGNQnUx/+8VTOgeXdOgZ8V26I+qM5HpeE8KjFA3NX5OqEmyJzxTOrL TWnqoxvmgyZQy6HHPsi+S5IAZJugKNn0jbClQZha7je5a7+5jEUszy1lYby9L/sLRZ6m 8vXf7W/gkHI9l1uZQPlSDp9jmF/SDJQQsiUau+mXRyW5kKbH8fZg/mmZzVaT3zpbFk4t 2BMeAUvxWH1r5mcvKpU2oPDTZlItzRQA5Setgvg2kyoMUhklY/DDa5NN7NxCyc6JAt63 0FQQ== X-Forwarded-Encrypted: i=1; AJvYcCWXnspCbaVplPdyI737+b2Fvp0Jfdb1qKOWJsWIQLYWx78t2tfz1Y0frGl+LaWkWZdkiAjF3+dezsEWWdigLzo3GK0e+QxnNQL8Pg== X-Gm-Message-State: AOJu0YzppAEOk8t+ZBp0kDe8uEs3fVFQ3HC332LXAk+8bG2H1YdXrrkZ yVb31D+DgeZi6/BjvP/DciULNs6UIEay3LFiwrQNMgNSU0DnuPZP9me9AdUX5S4= X-Google-Smtp-Source: AGHT+IF3OVauvlGO1nxR3XDABScTnbIuW6VxwtguVbngDcxS9MthKKzwc9GQNZ47KhPfz+utEVmKGg== X-Received: by 2002:a05:6e02:1a63:b0:374:5672:6791 with SMTP id e9e14a558f8ab-3748b97ee00mr54534805ab.8.1717254303897; Sat, 01 Jun 2024 08:05:03 -0700 (PDT) Received: from sunil-pc.Dlink ([106.51.187.237]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-6c35a4ba741sm2559410a12.85.2024.06.01.08.04.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Jun 2024 08:05:03 -0700 (PDT) From: Sunil V L To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, acpica-devel@lists.linux.dev Cc: Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , "Rafael J . Wysocki" , Len Brown , Bjorn Helgaas , Anup Patel , Thomas Gleixner , Samuel Holland , Robert Moore , Conor Dooley , Andrew Jones , Andy Shevchenko , Marc Zyngier , Atish Kumar Patra , Haibo1 Xu , =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , Sunil V L Subject: [PATCH v6 06/17] ACPI: scan: Define weak function to populate dependencies Date: Sat, 1 Jun 2024 20:34:00 +0530 Message-Id: <20240601150411.1929783-7-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240601150411.1929783-1-sunilvl@ventanamicro.com> References: <20240601150411.1929783-1-sunilvl@ventanamicro.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Some architectures like RISC-V need to add dependencies without explicit _DEP. Define a weak function which can be implemented by the architecture. Signed-off-by: Sunil V L --- drivers/acpi/scan.c | 11 +++++++++++ include/acpi/acpi_bus.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 6f3152170084..918e71fc54cb 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2068,11 +2068,22 @@ static void acpi_scan_init_hotplug(struct acpi_device *adev) } } +u32 __weak arch_acpi_add_auto_dep(acpi_handle handle) { return 0; } + static u32 acpi_scan_check_dep(acpi_handle handle) { struct acpi_handle_list dep_devices; u32 count = 0; + /* + * Some architectures like RISC-V need to add dependencies for + * all devices which use GSI to the interrupt controller so that + * interrupt controller is probed before any of those devices. + * Instead of mandating _DEP on all the devices, detect the + * dependency and add automatically. + */ + count += arch_acpi_add_auto_dep(handle); + /* * Check for _HID here to avoid deferring the enumeration of: * 1. PCI devices. diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 28a9b87c23fa..5fba4075d764 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -994,6 +994,7 @@ static inline void acpi_put_acpi_dev(struct acpi_device *adev) int acpi_wait_for_acpi_ipmi(void); int acpi_scan_add_dep(acpi_handle handle, struct acpi_handle_list *dep_devices); +u32 arch_acpi_add_auto_dep(acpi_handle handle); #else /* CONFIG_ACPI */ static inline int register_acpi_bus_type(void *bus) { return 0; }